Softwr

Accounting · head to head

Polar vs Supabase

Polar logo

Polar

Accounting

Billing and revenue platform for AI and infrastructure companies

From
Free
Rated
-
Full reviewWebsite
Supabase logo

Supabase

Technology

The open source Firebase alternative

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Polar percentage-based fees higher than some specialized processors for high-volume transactions; Supabase free tier projects auto-pause after 1 week of inactivity
  • They diverge on capability: Polar covers Usage Billing, Supabase covers PostgreSQL database.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Polar and Supabase actually diverge.

Attributes where Polar and Supabase differ
AttributePolarSupabase
Pricing modelPercentage of transaction plus per-transaction feeUnknown
PlatformsWeb, APIWeb, iOS, Android
CategoryAccountingTechnology
FoundedUnknown2020

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Polar

  • Usage Billing
  • Subscriptions
  • Seat Management
  • Prepaid Credits
  • Hosted Checkout
  • Cost Insights
  • Merchant of Record

Only in Supabase

  • PostgreSQL database
  • Auto-generated APIs
  • Authentication & authorization
  • Real-time subscriptions
  • Storage
  • Edge functions
  • Vector embeddings
  • Database migrations

What people use each for

The jobs each tool is most often brought in to do.

Polar

  • Billing for token and API call consumption by LLM applicationsnot Supabase
  • Managing tiered pricing for infrastructure usage-based servicesnot Supabase
  • Handling subscription and usage hybrid modelsnot Supabase
  • Monetizing AI APIs with usage metering and creditsnot Supabase

Supabase

  • Web application backends using Postgres plus auto-generated REST/GraphQL APIsnot Polar
  • Mobile app backends via Flutter/Swift/Kotlin client librariesnot Polar
  • AI applications using vector/embeddings storagenot Polar
  • Authentication with 20+ social providers plus email/passwordnot Polar
  • File and media storage (S3-compatible with CDN) and realtime sync over WebSocketsnot Polar

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Polar

  • Percentage-based fees higher than some specialized processors for high-volume transactions
  • Merchant of record model may not suit companies preferring direct payment control
  • Free Starter tier limited with 5% fees reducing appeal for production use
  • Setup and integration effort required despite API simplicity

Supabase

  • Free tier projects auto-pause after 1 week of inactivity
  • Free tier hard caps: 500 MB database, 1 GB file storage, 5 GB egress/month, 50,000 monthly active users, max 2 active free projects per organization
  • Pro plan charges usage overages beyond included quotas, e.g. $0.00325 per MAU above 100,000 and $0.125/GB disk above 8 GB
  • SOC2/ISO 27001 certification and HIPAA (add-on) compliance require the $599/month Team plan; not available on the $25/month Pro plan

Pricing, plan by plan

Polar

Free
  • StarterFree
    • 5% + $0.50 per transaction
    • Free tier for testing
    • Basic features
  • Pro$20/month
    • 3.8% + $0.40 per transaction
    • Full platform access
    • Cost insights
  • Growth$100/month
    • 3.6% + $0.35 per transaction
    • Priority support
    • Volume benefits
  • Scale$400/month
    • 3.4% + $0.30 per transaction
    • Dedicated support
    • Custom integration

Supabase

Free
  • FreeFree
    • 50,000 MAU
    • 500MB database
    • 5GB egress
  • Pro$25/month
    • 100,000 MAU
    • 8GB disk
    • 250GB egress
  • Team$599/month
    • SOC2 and ISO 27001
    • HIPAA add-on
    • 28-day log / 14-day backup retention
  • Enterprise$undefined/month
    • Custom limits
    • Dedicated support manager
    • 24/7/365 support

Which should you pick?

Choose Polar if

  • You need usage billing.
  • You want to start without paying.
  • You work on Web, API.
  • You also want subscriptions.
Polar review

Choose Supabase if

  • You need postgresql database.
  • You want to start without paying.
  • You work on Web, iOS, Android.
  • You also want auto-generated apis.
Supabase review

Questions people ask

Is Polar or Supabase better?
Neither clearly leads. Polar starts at Free and Supabase at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Polar or Supabase?
Polar starts at Free and Supabase at Free.
Does Polar or Supabase run on more platforms?
Polar runs on Web, API. Supabase runs on Web, iOS, Android.
Can I use Polar for free?
Both have a free tier, so you can try either at no cost before committing.
What is Polar best used for?
Polar is most often used for billing for token and api call consumption by llm applications, managing tiered pricing for infrastructure usage-based services, handling subscription and usage hybrid models, monetizing ai apis with usage metering and credits. Of those, billing for token and api call consumption by llm applications and managing tiered pricing for infrastructure usage-based services are not what Supabase is typically brought in for.
What can Polar do that Supabase cannot?
Polar covers Usage Billing, Subscriptions, Seat Management, Prepaid Credits. Supabase covers PostgreSQL database, Auto-generated APIs, Authentication & authorization, Real-time subscriptions.

Answered from the vendors’ own pages

Polar: Do you handle international payments and taxes?

Yes, Polar acts as merchant of record in 100+ markets, handling payment processing, tax collection, and compliance automatically.

Source
Supabase: How much does Supabase cost?

Supabase offers a free tier and three paid plans. Pro starts at $25 per month, Team at $599 per month, and Enterprise requires a custom quote. All pricing is in USD charged monthly.

Source
Polar: Is there a free tier?

Yes, the Starter plan is free and charges 5% + $0.50 per transaction, ideal for testing and early-stage development.

Source
Supabase: What are Supabase's usage overage fees?

Pro plan users pay $0.00325 per monthly active user over the 100,000 included, and $0.125 per GB for database storage exceeding 8 GB per project. Compute instances cost $10 to $3,730+ per month.

Source
Polar: Do you offer discounts for startups?

Yes, the Startup Program provides the Scale plan free for 12 months for early-stage AI companies.

Source
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